Long-tailed Ducks Bills - page 5 of  5

Long-tailed Ducks, a diving duck, are feeding on an abundance of Zebra Mussels at Frenchman's Bay in Pickering near Toronto. After diving they surface with clumps of mussels in their bills, which they manipulate until swallowing everything whole.


Long-tailed Ducks have chisel-shaped bills, curving up at the tip. Bill shape is an important physical character that enables them to grab crustaceans, mollusks, clams and mussels, and their bills are small enough to take smaller prey. They were close enough to see the serrations on the bills, another important adaptation. Frenchman's Bay on 2 March 2016.


Presumably sharp teeth-like serrations enable them to grab, hold and manipulate smooth-shelled crustaceans.



Page 1 Male Long-tailed Ducks


Page 2 Female Long-tailed Ducks


Page 3 Male and female Long-tailed Ducks


Page 4 Variation in Long-tailed Ducks


Page 6 More Long-tailed Ducks

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